That looks like what I consider the 2017 - 2020 seat. There's an older seat than yours.
That's possibly "good news" for a replacement seat. I think that you have the same metal seat base as the Model 3 / Y.
The difference with your seat is that you have metal bars attached to the outside of the metal seat base to provide support for more firm and taller wings/bolsters.
You should be able to purchase any used 2017-2020 Model S seat. I deal mostly with Ebay.
Since you want it in better condition, you can try to be selective. Get a car the seat came from with lower mileage and closer to 2020. Look closely at the pictures of the seat for match.
I'm surprised your seats aren't holding up with 95K miles. Perhaps the time and heat also did a number on the foam.
If all you are trying to do is get a newer seat and you don't have pain, then a direct swap should work. Look carefully at the connectors before purchase to match them.
If you do have pain you can modify the seat some, like I have done.
The Service Center cannot upgrade your seat to a newer year because they aren't built the same. To the best of my knowledge you'd have to stay within your generation.
BTW, that car should be eligible for the hardware and camera upgrades for FSD and might be free. Contact the Service Center to see if it is eligible.
That's all to the best of my knowledge.
Let me know if you need more help or have additional questions..
Others can chime in if they think I'm mistaken about anything.
I can be reached and found in my home town by a search of my full name.
I also run a martial arts school called SystemaCrystalRiver.com
Sincerely,
George Borrelli